Lighting
50-180 PAR is a flexible starting range; growth control and steady flow usually matter more than exact PAR.
Soft CoralBeginnerCare score 3/10
Blue Sympodium
Sympodium spp.
Blue Sympodium soft coral guide for identifying blue mat, choosing variable placement with moderate flow, and managing closure, shedding, or tissue slump when kept near Clove Polyps and Blue Clove Polyps.
Compare blue mat, care range, and nearby lookalikes while checking an ID.
Snapshot
Quick Care Snapshot
- Difficulty
- Beginner
- Care score
- 3/10
- Placement
- Variable
- PAR range
- 50-180 PAR
- Flow
- Moderate
- Aggression
- Low
- Growth rate
- Fast
- Minimum tank age
- 2 months
- Minimum tank size
- 10 gallons
Care note
This entry has low confidence or is marked for expert review. Treat the ranges as conservative starting points and compare them with your own system.
- Verify taxonomy before species-level SEO or care claims.
Images
Reference Photos
Photos are shown only when a source includes reusable license metadata. Always verify appearance against the coral in your own lighting and flow.
Source: Wikimedia Commons. License: CC BY 4.0
Source: Wikimedia Commons. License: CC BY 4.0
Photo: Jean-Paul Boerekamps
Source: Wikimedia Commons. License: CC0
Ranges
Water Parameters
These ranges are approximate starting points from the coral database and should be adjusted to the stability and history of your system.
- Temperature
- 76-80 F / 24.4-26.7 C
- Salinity
- 1.024-1.026
- Alkalinity
- 8-9.5 dKH
- Calcium
- 380-460 ppm
- Magnesium
- 1250-1400 ppm
- Nitrate
- 2-25 ppm
- Phosphate
- 0.03-0.2 ppm
Care
Care Notes
Flow
moderate flow should help shedding and detritus removal while avoiding constant collapse of the colony.
Stability
For Blue Sympodium, review salinity, nutrient swings, and flow before assuming decline; temporary closure, shedding, or posture changes can be normal.
Variability
Blue Sympodium requirements vary by specimen, aquaculture history, shipping stress, and tank maturity; use these ranges as starting points, not guarantees.
Feeding
Feeding
- Benefits from feeding
- No
- Food types
- dissolved nutrients, fine suspended foods
- Frequency
- direct feeding is usually optional
ID
Identification
Key features
- blue mat
- small feathery polyps
- encrusting soft coral growth
Common colors
- Blue
- Green
- White
Similar coral references
How to tell apart
Blue Sympodium is best separated from Clove Polyps and Blue Clove Polyps by weighing blue mat, small feathery polyps, and encrusting soft coral growth. Look at mat or branch structure, polyp arrangement, surface shedding, and spread pattern; then compare that structure with where the coral expands, retracts, or shows early recession. Do not rely only on color under blue lighting. For soft corals, growth habit, polyp arrangement, and shedding behavior are usually more useful than a loose trade name.
Placement
Compatibility
Compatibility depends on specimen size, flow, growth, aggression, and spacing. Use these references conservatively and watch for contact over time.
Usually compatible with spacing
Use caution near
Avoid close placement with
Spacing recommendation: keep about 3 inches of clearance, then adjust based on extension and neighboring coral response.
Troubleshooting
Common Problems
Use these as troubleshooting checks, not a diagnosis. Symptoms may point to more than one issue.
Blue Sympodium closure, shedding, or tissue slumpOpen for symptoms, likely causes to check, and practical next steps.
Symptoms that may indicate it
- polyps stay closed, surface film appears, or branches look limp
- Blue Sympodium shows less normal extension, inflation, or feeding response than its recent baseline
- changes are localized rather than a confirmed single-cause condition
Likely causes to check
- normal shedding, salinity change, low indirect flow, or chemical irritation in a mixed reef
- recent placement, lighting, flow, or chemistry changes affecting Blue Sympodium
- possible irritation from neighbors, pests, detritus, or handling depending on the coral group
Quick checks
- check whether Blue Sympodium is shedding before moving it
- improve indirect flow across the surface or branches
- review recent salinity, carbon, or chemical-filtration changes in mixed reefs
Checklist
Common Mistakes
- allow normal soft coral shedding while checking flow and salinity trends
- placing Blue Sympodium before confirming blue mat and its spacing needs
- using Blue Sympodium color or trade name alone instead of comparing it with Clove Polyps
- changing light, flow, and chemistry together when Blue Sympodium looks irritated
- ignoring spread control when keeping Blue Sympodium
Compare
Similar Corals
Neighbors
Compatible Corals
These corals are usually compatible with spacing, observation, and stable conditions. This is not a guarantee.
Usually compatible with spacing
Zoanthids
Zoanthus spp.
- Category
- Zoanthid
- Difficulty
- Beginner
- Aggression
- Low
Usually compatible with spacing
Mushroom Coral
Discosoma spp. / Rhodactis spp.
- Category
- Mushroom
- Difficulty
- Beginner
- Aggression
- Low
Usually compatible with spacing
Green Star Polyps
Pachyclavularia violacea / Briareum violaceum
- Category
- Soft Coral
- Difficulty
- Beginner
- Aggression
- Low
FAQs
FAQs
Is Blue Sympodium beginner friendly?
Blue Sympodium can be beginner friendly in a stable reef, but still needs acclimation, space, and observation after moves.
Where should Blue Sympodium be placed?
Start Blue Sympodium on a movable frag plug or isolated rock so it can be adjusted without disturbing the main aquascape. Use 50-180 PAR and moderate flow as a starting point, then adjust from tissue extension, color, and nearby coral response.
Does Blue Sympodium need food or just stable nutrients?
Blue Sympodium does not usually need direct feeding. The database lists dissolved nutrients and fine suspended foods and notes: direct feeding is usually optional. For soft-coral style care, stable nutrients and enough flow to keep surfaces clean are the main checks.
Can Blue Sympodium spread onto nearby rock?
Give Blue Sympodium about 3 inches of clearance as a starting point. Its database aggression level is Low. Use caution near Xenia and Kenya Tree Coral. Avoid close placement with Acropora and Chalice Coral. Compatibility is not a guarantee, so check contact points as colonies expand. For spreading or mat-forming corals, also watch the edge of the colony so it does not grow into neighbors unnoticed.
What should I check if Blue Sympodium looks stressed?
Use this as a troubleshooting check. For Blue Sympodium, polyps stay closed, surface film appears, or branches look limp and Blue Sympodium shows less normal extension, inflation, or feeding response than its recent baseline can indicate Blue Sympodium closure, shedding, or tissue slump. Likely causes to check include normal shedding, salinity change, low indirect flow, or chemical irritation in a mixed reef and recent placement, lighting, flow, or chemistry changes affecting Blue Sympodium. Start with these database checks: check whether Blue Sympodium is shedding before moving it and improve indirect flow across the surface or branches.
What should I check before moving Blue Sympodium?
For Blue Sympodium, review salinity, nutrient swings, and flow before assuming decline; temporary closure, shedding, or posture changes can be normal. The database lists 2 months as the minimum tank age and 10 gallons as the minimum tank size. With soft corals, temporary closure or posture changes can happen, so compare against the recent baseline before moving it repeatedly.
Coral Identifier
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